{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53648",
    "entityType": "User",
    "nonce": "0x0ad9940630af0b4b230b8ee2bf6d23195ab663952e66c66a392a0739072ae108",
    "signature": "0x1c263a08d9f6e387b9631bcc4bd34b9ab7d6e060320c4bf63c543cc8e88408db48a64f9ed2c0267dfb2c17ca97acd213799c9338e49f2992f039241e9453ec5c1c",
    "signer": "0x49725020a21cF6A928575eE04a5506771Fc95916",
    "userId": "908506084"
  }
}