{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9a848f81b8650948367b6303d81cc41cc8d16bc924be351d23e4525c4c401b57",
    "signature": "0x28c109922089fac402eeb012a5f230c7ae1f006c60175c0fc6fe0c6a63769454105ffad34cdc6cd4f4cfff17102ee27f7a3ecac47fd11b47c7312ed495e003c01b",
    "signer": "0x58c568208a4777caB1471C1ff6CeCD309f8b0879",
    "userId": "700925850"
  }
}