{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "274010868",
    "entityType": "User",
    "nonce": "0xe3ca69c13cea06d0b5ea054f5e438bbae092cfc0ba9b04615e2689d3fd62a585",
    "signature": "0xee08f597ea5714ace60500ac33a11b53c6e0509f7ddbe709a92e38b3fd85f12062228c73cf18062bcd3c8dfb700219b3aff5bfe4a07ab57fc9ec2205d876cc111b",
    "signer": "0x4810fE66B3A42DA4cb34b622aD9A069C293c6b86",
    "userId": "445042807"
  }
}