{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5ce4cb23c16dc030c83ec5671ee47e3596e249dee09259db91a85398883345f4",
    "signature": "0x8c8dd84f0c5832a5aa94d25e646adea8b6853f342f6c4e99f92e0e9cb5ee2771336798b5f8b4f9ecaaf38b69c2ce63ba479032352f24f4554465ef2168582d851b",
    "signer": "0x3576236e7322E5B2F2bdeC4E6e89725094569eF3",
    "userId": "544633459"
  }
}