{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "321201",
    "entityType": "User",
    "nonce": "0xc6cd655806643e8e112a40faa12b1206c26b66fc48e97ec58e14c6917ee8615f",
    "signature": "0xdca14a5c63afe52b2fb68a2f258f5c203ca0ac2451edde98afea61c06ab7d48a2546a0e30b3fee2e69bbb07b50d27451c0236a3434b1ef281a5acdb9111507161b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}