{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0xe7d740dc0beff9dba07b39e0220445f60221128eaec10991f81c4a99678c2831",
    "signature": "0x58d24e3e2d744c4d96b95d7f20b480a40f964f773eedadfbe0c0b62882b6d0d13a13c5f4e17978973b0b14b3b524070516914542988c77658dd48dfae8a09f211c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}