{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x49260e86a7146cec41a15da6aafc68b6c8d534c7603311a112121a2d4bd437cd",
    "signature": "0x3efadcb59c6ac7cf192d538f4073014a1921d6055302755996ef368f6ebe716b34c7e652d76a0e8190640a8601d4a6abd6f43df64a233897e6f022bd2d44f7a81c",
    "signer": "0xd540EbCBe132277641a47B8b44c7c853ed04aE1b",
    "userId": "308343139"
  }
}