{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4f63d2965fe6e5e51a0fd0987f34ea5425299af872964b06b676a11fe8c9a571",
    "signature": "0x4a3cddeab397d9da74161fc076061a9b32c788c8b224e56b092dbe83f68b0b346e2b9ea442e9148b540e9921a00fe548d8103abec10d37b403a173da3d761b5d1b",
    "signer": "0x37beb91444A1596861835f1Af31A7f850A3A5D2c",
    "userId": "318524660"
  }
}