{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "315657429",
    "entityType": "User",
    "nonce": "0x76ecd1047a6abcbf760a5a2b23fff914105d7a026daa069868dd399de5a814ad",
    "signature": "0x71ca5e8464a277069230c093166881d3c4c4709aca6441ffbce6c140743a77591203a3f0853734a3f4c38cdf4ab4e146f832c9b2e26cba3de00b53308380d4c11c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}