{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "884071071",
    "entityType": "User",
    "nonce": "0xc23c2c4337ccc281b57dea55ef9008095253a456a142e554e46d87161185cedd",
    "signature": "0xb596508b18c77417bd09560075a85c2f3a0d7d0c7190356f07dd249cefc511554ca239c9f2cf107447887df3a49b3120a331899da046b9d10886135db6e88ab81c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}