{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1966617",
    "entityType": "User",
    "nonce": "0xd0f91e245ce6e9236de5bfbebc3f70c9c6af9036c570441aefe44988d50a4ba0",
    "signature": "0xdab3942fa90cf61359686f2bacde6e920da2aad4ac97f81fff98445c86f792921c95c96354e975792cc2e88cb88a18aa5201d67fbcb5df0865ee4640c0c5471f1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}