{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "161447907",
    "entityType": "User",
    "nonce": "0xcba3cd0bdca44f3ef5cff8871102b120a3d0b84db02734553c8515d1d44847f4",
    "signature": "0x4d67307170a32a38ee2c0268643d7b9d12752a4e9c0f8b55bdcb58c2f213027d01836f26f25c1f27c929f311a545c56f22ff9cedee61c8e72cc94e71b45b8ea51c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}