{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3407",
    "entityType": "User",
    "nonce": "0x97b19f62768c1326d27ed61a0bcd42e632c24bd76b3b04a5d1727426cefd2141",
    "signature": "0xbc95491e68bfc1e81a8dcb155c6d3d3d6321bf9edcfd4297b4022443d4ba1fc2683762e01ea35bef1911d55859e0ce267da91a0d5208e8d6ca96b08202270dd61b",
    "signer": "0x4C4841CcA077D753614283FeC6685b83DBf77Ca4",
    "userId": "232719114"
  }
}