{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "657936",
    "entityType": "User",
    "nonce": "0x63b7fe1adfb7649c2c8451e1e81523b4ce1f82841a933560ef3e608a2b1c5f97",
    "signature": "0x063fcfd09e77a3359d4df9788d6b613be60eed0329cef483f32ef46234ad821e664e4a3ee419732d7eb08cc118988f331996fc68752a526d90bf181a94e2eb381c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}