{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe8243927a84dca112ffbe8a322981abd721d2cc7b003627c7cccc281dd12a67b",
    "signature": "0x28383af5ba0275a0e453c898ac923690a415fa2ef784dddc606f407ee32d16194b2c344a3ac0eb15dee048fd1d87c22917cf76b99ef0cdc633686363393fbb161c",
    "signer": "0x8bd0DeB0efbFF58553556C705ccDFD9BB97C1f4A",
    "userId": "349629525"
  }
}