{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294",
    "entityType": "User",
    "nonce": "0x2a10bb858dea804ccf17da9941f75ccfda07cfc71ad89c4722d532b09ba19982",
    "signature": "0xc230869d92d084f58d7c52030b8d6ce4affcc05cf9f975719465f74b9c4df32b3b3c60ee67562c3dfa6773ab37e889548c35584317d495a3ed8d8132e3e2ff361c",
    "signer": "0x1ac5ff1336A90be3bf8FE90966C5437178D1b880",
    "userId": "35488"
  }
}