{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "435109",
    "entityType": "User",
    "nonce": "0xa181a5810ebbeb540a704705595acf532f27eaf3c1a512a812744b281f04b2e2",
    "signature": "0x26e1d6d1fc66c5189af8cc7b99c6bea3828352b1bb9d5a0686ce3292e5f9c7c11b0dd55bf7829946b080a514dae02a4403ddd4f46e569cb88b0ebbe4fbc7e3ef1c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}