{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf52f6feacc56f621b16aa701792f13c9573c0d5d5bf5f4edd2cbccfee1b3c7ba",
    "signature": "0x961de6cd1814dc74dec6ee6d9bb31a1c7ee71237efb5ee6821ae1bfe904c98f56122ebc88943cb1976cc015b41a336a5194e040531a0b108591973e56157989a1c",
    "signer": "0x17Aa7AcE79030145b0743C1B88869C1858F8EA97",
    "userId": "921310573"
  }
}