{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xde82eeb1986a78e35cbe1b82deac6b7615fd43e02dd118faea0937b2b9769b1d",
    "signature": "0x9cb93752f9cabd113a0175f314beed31f7216dd38299bb263057014b35713a7508f4d6f4a2daa0ae3fc6019980325fbd94a5d554bc0243790197d21265f4f2341b",
    "signer": "0xd07BBE0b3cE1a7008F43F54797DDCD8E9a5648f2",
    "userId": "912039074"
  }
}